Sciweavers

220
Voted
TSP
2012
14 years 2 months ago
Sensing and Probing Cardinalities for Active Cognitive Radios
—In a cognitive radio network, opportunistic spectrum access (OSA) to the underutilized spectrum involves not only sensing the spectrum occupancy but also probing the channel qua...
Thang Van Nguyen, Hyundong Shin, Tony Q. S. Quek, ...
198
Voted
TSP
2012
14 years 2 months ago
Randomized Isometric Linear-Dispersion Space-Time Block Coding for the DF Relay Channel
This article presents a randomized linear-dispersion space-time block code for decode-andforward synchronous relays. The coding matrices are obtained as a set of columns (or rows)...
David Gregoratti, Walid Hachem, Xavier Mestre
224
Voted
TSP
2012
14 years 2 months ago
Distributed Covariance Estimation in Gaussian Graphical Models
—We consider distributed estimation of the inverse covariance matrix in Gaussian graphical models. These models factorize the multivariate distribution and allow for efficient d...
Ami Wiesel, Alfred O. Hero
340
Voted
TMA
2012
Springer
259views Management» more  TMA 2012»
14 years 2 months ago
Using Metadata to Improve Experiment Reliability in Shared Environments
Experimental network research is subject to challenges since the experiment outcomes can be influenced by undesired effects from other activities in the network. In shared experi...
Pehr Söderman, Markus Hidell, Peter Sjöd...
TMA
2012
Springer
268views Management» more  TMA 2012»
14 years 2 months ago
Identifying Skype Nodes in the Network Exploiting Mutual Contacts
Abstract. In this paper we present an algorithm that is able to progressively discover nodes of a Skype overlay P2P network. Most notably, super nodes in the network core. Starting...
Jan Jusko, Martin Rehák
375
Voted
TMA
2012
Springer
278views Management» more  TMA 2012»
14 years 2 months ago
tsdb: A Compressed Database for Time Series
Large-scale network monitoring systems require efficient storage and consolidation of measurement data. Relational databases and popular tools such as the Round-Robin Database sho...
Luca Deri, Simone Mainardi, Francesco Fusco
219
Voted
TMA
2012
Springer
254views Management» more  TMA 2012»
14 years 2 months ago
Steps towards the Extraction of Vehicular Mobility Patterns from 3G Signaling Data
Abstract. The signaling traffic of a cellular network is rich of information related to the movements of its devices across cell boundaries. Thus, passive monitoring of anonymized ...
Pierdomenico Fiadino, Danilo Valerio, Fabio Riccia...
TMA
2012
Springer
234views Management» more  TMA 2012»
14 years 2 months ago
Padding and Fragmentation for Masking Packet Length Statistics
Alfonso Iacovazzi, Andrea Baiocchi